Like mattias said, there’s no tech that has the highest percentage of success for everyone. Check out that link RCILD is easy enough to do, but it’s unreliable and depends on you randomely doing an RC in a dream. It’s happened to me on several occasions, but I’m just as likely to get DILD. Play with the other techniques in that link, but also do RC’s throughout the day, as often as possible. Just make sure you question reality as you do it.
If all else fails, you should try out the Infinity software by BenDrummin. It’s great for beginners and experienced people alike, but it will require some time and dedication. Ben actually garauntees success by the end of the 14 days if you follow it correctly (though I do know one or two people that had to try a second time 
).